Ubuntu 22.04 x86_64 llvm clang 16.0.6 源码编译安装

https://github.com/llvm/llvm-project

编译脚本

#!/bin/bash
 
build_llvm=`pwd`/build-llvm
build_clang=`pwd`/build-clang
installprefix=/usr/local/
llvm=`pwd`
mkdir -p $build_llvm
mkdir -p $installprefix
 
cmake -G Ninja -S $llvm/llvm -B $build_llvm \
      -DLLVM_INSTALL_UTILS=ON \
      -DCMAKE_INSTALL_PREFIX=$installprefix \
      -DCMAKE_BUILD_TYPE=Release
 
sudo ninja -C $build_llvm install
 
cmake -G Ninja -S $llvm/clang -B $build_clang \
      -DLLVM_EXTERNAL_LIT=$build_llvm/utils/lit \
      -DLLVM_ROOT=$installprefix
 
sudo ninja -C $build_clang install